Riveting or punching machine.



M, W. TALEN.

RIVETING OR PUNCHING MACHINE. APPLICATION FILED AUG. 23, 1907.

Patented. Mar. 15, 1910.

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M. W. TALEN. RIVETING OR PUNGHING MACHINE. APPLICATION FILED AUG. 23,1907.

Patented Mar. 15, 1910.

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M. W. TALEN. RIVETING 0R PUNGHING MACHINE.

APPLICATION II LED AUG. 23, 1907.

Patented Mar. 15, 1910.

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TINTTED %TATE% PATENT FENCE.

MAURICE W. TALEN, OF CHICAGO, ILLINOIS, ASSIGNOB. 'IO WELLERMANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION.

RIVETING- OR PUNCHING MACHINE.

To all whom it may concern:

Be it known that I, MAURICE "W. TALEN, a citizen of the United States,and a resident of Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Riveting or PunchingMachines, of which the following is declared to be a full, clear, andexact description.

The invention relates to riveting or punch ing machines and seeks toprovide an improved form of machine by which rivets which are ofdifferent. angles to the given base line, may be readily set by whichholes may be punched at different angles to one another, and theinvention consists in the features of construction, combinations andarrangements of parts hereinafter set forth, illustrated in theaccompanying drawings and more particularly pointed out in. the appendedclaims.

In the drawings, which illustrate an embodiment of the inventionparticularly designed for setting the rivets that connect the sectionsof a spiral conveyer, Figure 1 is a view in elevation. Fig. 2 a view inelevation of a portion of a spiral conveyor. Fig. 3 is a longitudinalsection through the machine. Fig. 4: is a detail section on the line llof Fig. 3. Fig. 5 is a detail enlarged section on the line 5-5 of Fig.4. Fig. 6 is a cross section through the machine on the line 6-6 of Fig.3. Fig. 7 is a detail cross section on the line 77 of Fig. 3.

The invention comprises broadly a head rotatably mounted in a suitableframe and including a pair of relatively shiftable jaws or tool holderswith mechanism for properly and automatically controlling the operationof the jaws for setting rivets or punching holes that are at differentangles to one another or to a common base line.

As stated, the particular embodiment of the invention illustrated in thedrawings, is designed for setting rivets which connect the sections ofspiral conveyers. A portion of such a conveyor is illustrated in Fig. 2.The spiral blade of the conveyer is built up fro-1n separate steelplates which are rolled to proper shape and then riveted together toform one continuous spiral. The overlapping portions of the separatespiral sections are connected together by rivets which are placed atdifferent distances from the axis of the spiral. In the form shown inFig. 2,

Specification of Letters ZPatent.

Application filed August 23, 1.907.

Patented Mar. 15, 19M).

Serial No. 389,840.

three rivets, 1, 2 and 3, are employed at each joint and, since they areat different distances from the center of the spiral, they will be atdifferent angles to the axis, as indicated in Fig. 2. The improvedmachine provides means whereby these rivets may be rapidly andsuccessively set and which obviates the necessity of moving the workabout to bring the different rivets into proper relation with the jawsor tool holders of the machine.

The machine illustrated in the drawings comprises a frame 10 which ismounted upon suitable supports or legs 11. At one end the frame isprovided with a stationary cylindrical casing 12, the axis of which ishorizontal. The rotatable head comprises a pair of relatively shiftablecooperating jaws, one of which, in the machine illus t 'ated, isrelatively fixed and the other movable in a direction transverse to theaxis of rotation of the head. In the form illus trated, the rotatablehead also includes a hollow, cylindrical portion 13 which fits rotatablywithin the cylindrical casing 12 of the machine frame. The outer end orhead 1 1- of the hollow, cylindrical portion 13 is provided with anopening 15 in which the fixed and movable jaws 1G and 17 are arranged.The fixed jaw 16 is provided with a flange 18 which overlaps and isconnected with the end or head 14; by a series of bolts 19. The movablejaw 17 is connected by a pivot 20 to the fixed jaw 16 and the jaws areprovided with suitable tools or dies 21.

The outer end of the cylindrical portion 12-3 of the head is providedwith a lip or projecting shoulder 22 which engages the outer end of thecylindrical casing 12 of the frame. A ring 23 abuts against the innerends of the casing 12 and of the cylindrical portion 13 of the head andis secured to the head by a series of bolts 24: extending through thecylindrical portion 13 of the head and having outwardly projecting lugsor heads at their inner ends which overlap the ring 23.

The main operating shaft 26 of the machine is horizontally mounted andis concentric with the cylindrical casing 12 of the machine frame andwith a rotatable head mounted therein. The axis of the shaft is also inthe same plane with the axis of the lunged pivot 20 between the fixedand movable jaws or tool holders. That is to say,

the center line of the main operating shaft arm.

26, if extended, would intersect the axis of the hinged pivot 20.

The frame is provided with a semiconical portion 27 which extendsupwardly from the cylindrical casing 12 supported from the base plate ofthe frame by a central web 28. This portion of the frame carries at itsupper, outer end a bearing 29 for the outer end of the operating shaft26. The inner end of the shaft 26 is journaled in bearings 30 and 31 toform respectively, inwardly and upwardly projecting parts 32 and 33 ofthe fixed jaw 16 and the cylindrical portion 13 of the rotating head.Bearings 30 and 31 therefore, rotate with the head having the relativelymovable jaws or tool holders.

An eccentric 34: is keyed to the shaft 26 between the .bearings 30 and31 and is provided with a split eccentric strap 35 having oppositelydisposed projecting pintles 36. A pair of links 37 connect the pintles36 of the eccentric strap and pintles 38 upon a yoke 39 that is swiveledto the inner end of an upwardly and inwardly projecting part 10 of themovable jaw or tool holder 17. The rotation of the shaft 26 andeccentric 3 lrelatively to the rotating head will therefore serve tooperate the movable jaw for setting rivets or punching holes. Theparticular form of-dies or tools shown is more particularly adapted, asstated, for setting rivets but the arrangement thereof could be variedand adapted for punching holes and the like without departure from thebroad scope of the invention. A flange 13 at the inner end of thecylindrical portion 13 is slotted and provided with a pair of guide lugs13 for the end portion 10 of the movable jaw.

Suitable means are provided for driving the shaft 26. In the form shown,a drive pulley 11 is loosely mounted on the shaft and its hub 42 isprovided with clutch teeth on its inner end so as to form one of theclutch members for coupling the pulley to the shaft. The other clutchmember is in the form of a sleeve 13 keyed upon the shaft to rotatetherewith but longitudinally shiftable on the shaft into and out ofengagement with the companion clutch member 42. A split ring 4 1 engagesan annulargroove 1n the clutch sleeve or member 13 and is provided atopposite sides with laterally projecting pintles l5 which engage theupper ends of a pair of arms 4L6 mounted on a short cross shaft 47..This shaft is journaled in the bracket 48 on the end of the frame (seeFigs. 3 and 7) and is provided at one end with an inwardly extending arm419. This arm is provided at its inner end with an opening through whicha vertical rod 50 extends. A spring 51 coiled about the rod 50 isinterposed between the arm 49 and a collar 52 fixed to the rod below theThe rod 50 extends downwardly through the base plate of the frame and isconnected to the rear end of the foot lever which is pivoted between itsends upon a bracket 54 that depends from the base plate of the frame 10.One of the arms 46 connected to the sliding clutch member 43 is providedat its upper end with a projecting lug or shoulder 55 (see Figs. 3 and7) which is arranged to be engaged by the hooked shaped ends of a latch56 and a throw-out trip 57. The latch 56 is connected by a pivot pin 58to the frame and the throwout trip 57 is connected by a pivot pin orbolt 59 to a sliding collar or sleeve 60 on the shaft 26. The latch 56and throw-out trip 57 extend outwardly through an opening in a guidebracket 61 fixed to the frame and their outer hooked ends normallyengage the shoulder to hold the clutch members disengaged. The latch 56is yieldingly held in its lowermost position by a spring 62 extendingbetween the latch and a pin 63 that projects laterally from the centralweb 28 of the machine frame. The opening in the guide bracket 61 is ofsufficient height to permit the shift of the latch and throw-out trip invertical direction into and out of engagement with the shoulder 55 onthe arm 16.

The sliding sleeve 60 on the shaft 26 is provided with an annular groovein which is arranged a split ring 64 having inwardly projecting arms 65(see Fig. 1). Pivot bolts 66 on the lower ends of these arms arearranged to engage slots in the lower ends of a pair of arms or links67. These arms are pivoted intermediate their ends by a bolt 68 to theend of a projection 69 on the bearing 31. A roller 70 carried betweenthe outer ends of the arms 67 by a cross pin or bolt 71, is arranged toengage the rounded inner end of the portion 10 of the movable jaw 17.

The sliding sleeve or collar 60 is connected on one side by the pivotbolt 59 to the throwout trip 57, as described (see Fig. 3). On theopposite side (see Fig. 1) it is connected by a pivot bolt 72 to theupper end of a rocking lever 73 which projects through an opening 74 inthe semi-conical portion 27 of the machine frame and which is pivotedintermediate its ends by a bolt 75 to a depending lug 76 on thesemi-conical portion of the frame. The lower end of the rock lever 73 isconnected by a coiled spring 7 7 to a hooked rod 78 adjustably threadedthrough a flange at the head end of the machine frame. The spring 77tends to throw the upper end of the lever 73, the sleeve 60 and thethrowout trip pawl 77 connected thereto outwardly (or toward. the rightin Fig. 3), and also tends to move upper end of the arms 67 inwardly andholds the roller 7 O thereon snugly in engagement with the end of theprojection on the movable jaw. The arms 67 are shifted as the inner endof the movable jaw is raised and lowered to shift the sliding sleeve andthrow-out trip longitudinally. The throw-out trip and sleeve 60 are ofcourse held against rotation by the rock lever 73. The operating arm orarms 67 are however free to rotate with the rotatable head because ofthe ring and groove connection between the lower ends of the 'arms 67and the sliding sleeve.

The upper end of the trip rod 50 which is connected to the treadle 53 isprovided with a head 7 9 which is arranged to engage and shift both thelatch 56 and the throw-out trip 57 to release the sliding clutch member43 which, as stated, is normally held in inoperative position by theengagement of the hooked ends of the latch and throw-out trip with thelug hen the work is in proper position for the operation of the jaws ortool holders, the operator will depress the outer end of the foot lever53 and elevate the trip rod 50. This will first compress the spring 51between the lug 52 and the arm 19 and then the head 7 9 on the rod 50will shift the latch 56 and throw-out trip 57 out of engagement with thelug and the clutch member 13 will be quickly shifted into engagementwith the clutch member 42 by the compressed spring 51 acting through thearm 49, shaft 4-7 and arms 16. The shaft 26 and eccentric 34. thereonwill then be rotated to operate the movable jaw or tool holder to clenchthe rivet placed between the dies or tools 21. During the operativemovement of the aws toward each other, the inner end of the portion 40of the movable jaw will move outwardly beyond the roller 71 on the arms67 so that the upper ends of the arms may be moved inwardly or towardthe left in Fig. 3 by the springs 77 and the sleeve 60 and throw-outtrip 57 are moved outwardly or toward the right to bring the hooked endof the throw-out trip above the shoulder on the arm 46, so that, whenthe treadle 53 is released and the rod 50 shifted to normal position bythe spring 51, the throw-out trip 57 will drop by gravity and bring itshooked. end into reengagement with the lug 55. During the openingmovement of the jaws or tool holders, the inner end of the portion tO ofthe movable jaw will be restored to the position shown in the drawingsand will shift the throw-out trip 57 through the medium of the arms 67,ring 6st and sliding sleeve 60 to disengage the clutch member 43 andcheck the operation of the drive shaft. The operation is thus arrestedwhen the jaws are restored to their normal open position, or after asingle complete operation of the machine effected by a single revolutionof the shaft 26 relatively to the rotatable head. It is obvious that themechanism for actuating the jaws or tool holders and for automaticallydisengaging the clutch will be operative in any position of the rotatinghead. It is also obvious that the rotating head may be shifted to setrivets or punch holes and the like, which are at different angles toeach other as are the rivets for connecting the sections of a spiralconveyer.

Preferably, means are provided for automatically shifting the rotatinghead for setting the successive rivets. For this purpose shaft 26 isprovided adjacent its outer end with a spur pinion 80 which meshes withthe gear teeth 81 on the periphery of a cam 82. This cam is journaledupon a short stud shaft 83 mounted in an upright bracket 84: at the rearend of the machine above the main shaft bearing 29. A short stud shaft-85 also mounted in the bracket or upright 8 carries a bell crank 87, onearm of which is provided with a toothed segment 88 and the other armwith a pin or roller 89 engaging the groove 90 of the cam 82. A countershaft 91 is journaled at its rear end in the upper end of the bracket orupright 8st and at its outer end in a bracket 92 that is bolted to theupper part of the cylindrical casing 12 of the machine frame. This shaftcarries at its rear end a pinion 93 which meshes with the gear segment88 and at its forward end is provided with a crank arm 91. This crankarm is provided with a dovetail guide 95 whereon is mounted a slide 96which may be adjusted on the crank arm by means of a screw 97. Apitman-rod 98 is pivotally connected at one end to the slide 96 and atits other end to a lug 99 on the ring 23. The movement of the cam 82thus serves through the medium of the mechanism described, to rotate thehead having the relatively movable die or tool holders so that the dieor tool holders may operate in different planes or at different angles.

The particular form of mechanism shown in the drawings is designed forriveting the joints of a spiral conveyor such as shown in Fig. 2, inwhich three rivets are employed at each joint. In this form the cam gear82 three times the size of the small pinion St) on the drive shaf 2-(3so that three revolutions of the drive shaft are necessary to complete asingle revolution of the can] gear and the cam gear is moved through athird of a revolution at each operation of the machine. The groove 90 ofthe cam is so arranged that during the setting of the rivet therotatable head is held stationary and the angular movement of the headnecessary to bring the jaws into proper position to set the next riveteffected during the restoring or opening movement of the jaws or toolholders. That is to say, assuming the parts are in the position shown inFig. 7 the jaws or tool holders will be closed to set the first rivetwhile the portion of the am grooved between the lines a and 7) isoperating on the roller 89 to hold the rotatable head stationary. itsthe jaws open after setting the first rivet, the part of the cam groovebetween the lines 7) and a will rotate the head and jaws or tool holdersforming part thereof through a sufficient angle to properly set the nextrivet in the joint of the spiral conveyor, and the operator thereforeneed not twist and swing the work around to bring the second rivet intoproper relation with the set ting dies. At the second operation of themachine for setting the second rivet, the part of the cam groove betweenthe lines 0 and (Z will operate on the roller 89 and parts connectedthereto to hold the rotatable head stationary while the jaws thereof aremoving together to clench the second rivet, and as the jaws open, thepart of the cam groove between the lines (Z and 6 will effect thefurther shift of the rotatable head for setting the third rivet. At thethird operation of the machine, the jaws will be brought together to setthe rivet while the part of the cam groove between the lines 0 and isacting upon the bell crank 87 to hold the head stationary and after thethird rivet is set the part of the cam groove between the lines 7' and awill be brought into operation to turn the head back in the oppositedirection ready to set the first rivet of the next joint. Other forms ofcams could of course be used for effecting different kinds of work andinterchangeable gears could be supplied with the same machine for makingjoints with two or four rivets or for making the joints of right andleft hand spiral conveyers.

The throw of the mechanism for rotating the head may be readily variedas desired or necessary by adjusting the position of the slide 96 uponthe crank arm 9%. The initial position of the head with respect to themechanism for shifting the same may be changed as desired by looseningthe nuts on the bolts 24 and adjusting the head with respect to the ring23 which is connected to the head shifting mechanism. In this way thehead may be properly set in position to clench the first rivet of theoint in a spiral conveyer and the throw of the head-shifting meansadjusted to move the head sutliciently at the end of each Operation tobring the jaws thereof in proper position for setting the successiverivets which occupy different angular positions.

It should be noted that the arms 67 which automatically operate thethrow-out for the clutch, rotate with the jaws or tool holders of thehead and are controlled thereby so as to throw out the clutch when thejaws are opened and this operation is properly effected in any positionof the rotating head.

It is obvious that numerous changes may be made in the details ofstructure set forth without departure from the essentials of theinvention.

While the particular form of machine set forth is designed for settingrivets, it is obvious that the jaws or the dies or tools thereof may besuitably modified for punchingholes.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is

1. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in said frame and comprising a pairof cooperating jaws relatively shiftable to and from each other in adirection transverse to the axis of rotation of said head, a drive shaftjournaled in said frame and mechanism actuated by said shaft foroperating said aws in the different angular positions thereof.

2. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the frame and comprising a pair ofrelatively shiftable jaws, a drive shaft, means actuating said shaft forautomatically shifting said head, and mechanism actuated by said shaftfor operating the jaws in the different positions of said head.

3. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of cooperating jaws relatively shiftable in a direction transverseto the axis of rotation of said head, means for automatically shiftingsaid head at the end of each operation of said jaws whereby thesucceeding operation of said jaws will be in a difierent plane andmechanism for operating said jaws in the different positions of saidhead.

4. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprisingcooperating jaws relatively shiftable in a direction transverse to theaxis of rotation of said head, mechanism for operating said jaws in thedifferent positions of said head and means controlled by said operatingmechanism for automatically shifting said head at each operation of saidjaws.

5. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprisingrelatively shiftable jaws, mechanism for operating said jaws in thedifferent positions of said head, means controlled by said operatingmechanism for automatically shifting said head at the end of each.operation of said jaws, and means for varying the throw of saidhead-shift ing means.

6. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the frame comprising a pair ofcooperating aws relatively .shiftable in a direction transverse to theaxis of rotation of said head, mechanism for operating said aws in thedifferent positions of said head, and an automatic throw-out for saidoperating mechanism arranged to act at the end of each operation of saidjaws.

7. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of relatively shiftable jaws,mechanism for operating said jaws inthe different positions of said head, means controlled by said operatingmechanism for automatically shifting said head at each operation and anautomatic throw-out for said operating mechanism controlled by themovement of said jaws and arranged to act at the end of each operationthereof.

8. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of cooperating jaws relatively shiftable in a direction transverseto the axis of rotation of said head, mechanism for operating said jawsin the different positions of said head, a clutch controlling theoperation of said mechanism, means for tripping said clutch intooperation, a throw-out for said clutch arranged to act automatically atthe end of each operation of said jaws and means controlled by saidoperating mechanism for automatically shifting said head at the end ofeach operation of said jaws.

9. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprisingcooperating aws, one relatively fixed and the other movable in adirection transverse to the axis of rotation of said head, mechanism foroperating said movable jaw in the different positions of said head,means controlled by said operating mechanism for automatically andsuccessively shifting said head at the end of each operation of themachine and a throw out for said operating mechanism automaticallyarranged to act at the end of each operation of said movable jaw.

10. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprisingcooperating jaws, one relatively fixed and the other movable in adirection transverse to the axis of rotation of said head, an operatingshaft concentric with said head, an operating connection between saidshaft and the movable jaw and rotatable with said head and means drivenfrom said shaft for automatically and successively shifting said head atthe end of each operation.

11. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of cooperating jaws, one relatively fixed and the other movable ina direction transverse to the action of rotation of said head, anoperating shaft concentric with said rotatable head and an operatingconnection rotatable with said head and extending between said shaft andthe movable aw.

12. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of relatively fixed and movable jaws, a shaft concentric with saidrotatable head, operating connections between said shaft and the movablejaw, a clutch on said shaft, means for tripping said clutch intooperation, a throwout for said clutch and an arm mounted on androtatable with said head and controlled by the operation of said movablejaw for shifting said clutch throw-out.

13. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of cooperating jaws, one relatively fixed and the other movable ina direction transverse to the axis of rotation of said head, a shaftmounted in the machine frame concentric with said rotatable head, anoperating connection between said shaft and the movable jaw, a drivepulley loose on said shaft, clutch members on said shaft for connectingthe pulley thereto, a throwout trip normally holding said clutch indisengaged position, means for releasing said throw-out trip to engagesaid clutch members, an arm mounted on and rotatable wit-h said head andcon trolled by the operation of said movable jaw for operating saidthrow-out trip to disengage said clutch members atthe end of eachoperation of the machine and means driven from said shaft forautomatically and successively shifting said rotatable head at the endof each operation.

lei. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted, in the machine frame and comprisinga pair of relatively fixed and movable jaws, a shaft concentric withsaid rotatable head, an operating connection between said shaft and themovable jaw, a drive pulley on said shaft, a clutch for connecting saidpulley to said shaft, means for throwing said clutch into operation, athrow-out for said clutch automatically arranged to act at the end ofeach operation, a cam journaled in the machine frame and driven fromsaid shaft and means ope 'ated by said cam for successively andautomatically shifting said head at the end of each operation.

15. In a riveting or punching machine, the combination with the machineframe, of a head rotatably mounted in the machine frame and comprising apair of relatively fixed and movable jaws, a shaft concentric with saidrotatable head, an operating con- 1ection between said shaft and themovable jaw, a drive pulley on said shaft, a clutch for connecting saidpulley to said shaft, means for throwing said clutch into opera tion, athrow-out for said clutch automatically arranged to act at the end ofeach operation, a cam journaled in the machine frame and geared to saidshaft and means interposed between said cam and said rotatable head forautomatically and successively shifting said head at the end of eachoperation, said means comprising a countershaft, a pitman rod connectingsaid shaft and head and means for adjusting the throw of said pitmanrod.

16. In a riveting machine, the combination with the machine frame, of ahead rotatably mounted in the machine frame and comprising a fixed jawand a movable jaw cooperating therewith, a shaft mounted on the machineframe concentric with said rotatable head, an operating connectionbetween said shaft and the pivoted jaw, means for intermittentlyoperating said shaft and means driven from said shaft for automaticallyshifting said rotatable head at each operation.

17. In a riveting machine, the combination with the machine frame, of ahead rotatably mounted in the machine frame comprising a fixed jaw and amovable jaw cooperating therewith, a shaft mounted in the machine frameconcentric with said rotatable head, a clutch for coupling said shaftwith a suitable source of power, means for throwing said clutch intooperation, an antomatic throw-out for said clutch arranged to act at theend of each operation, a cam driven from said shaft and connectionsbetween said cam and said rotatable head for automatically shifting thelatter at the end of each operation.

18. In a riveting machine, the combination with the machine frame, of ahead rotatably mounted in the machine frame and comprising a fixed jawand a movable jaw cooperating therewith, a shaft journaled in themachine frame and concentric with said rotatable head, an operatingconnection between said shaft and the movable jaw, a pulley loose onsaid shaft, clutch members for coupling said pulley to said shaft, athrow-out trip normally holding said clutch members apart, a slidingsleeve on said shaft to which said throw-out trip is connected, an armmounted on and rotatable with said head and controlled by the movementof said movable jaw and connections between said arm and said slidingsleeve for operating said throw-out trip to disengage the clutch membersat the end of each operation.

19. In a riveting machine, the combination with the machine frame, of ahead r0; tatably mounted in the machine frame and comprising a fixed jawand a movable jaw pivoted thereto, a shaft mounted in the machine frameconcentric with said rotatable head, an operating connection betweensaid. shaft and the pivoted jaw, a drive pulley loose on said shaft,clutch members on said shaft for coupling said drive pulley thereto, athrow-out trip normally holding said clutch members apart, means forreleasing said throw-out trip and engaging said clutch members, asliding spring-held sleeve on said shaft whereon said throw-out trip ismounted, a ring engaging a groove 111 said sleeve, an arm mounted on andretatable with said head and connected to said ring, the end of saidpivoted jaw being arranged to engage the free end of said arm andoperate the same to shift said sleeve and throw-out trip and disengagesaid clutch members at the end of each operation.

20. In a riveting machine, the combination with the machine frame, of arotatable head mounted in the machine frame and comprising a fixed jawand a movable jaw cooperating therewith, a shaft mounted in the machineframe concentric with said rotatable head, an eccentric on said shaft,an eccentric strap therefor, links connecting said eccentric strap tosaid movable jaw and means driven from said shaft for automaticallyrotating said head at the end of each operation.

21. In a riveting machine, the combination with the machine frame, of arotatable head mounted in the machine frame and comprising a fixed jawand a movable jaw pivoted thereto, a shaft mounted in the machine frameconcentric with said rotatable head, an eccentric on said shaft, aneccentric strap therefor, links connecting said eccentric strap to saidmovable jaw, means on said shaft for automatically and successivelyshifting said rotatable head at the end of each operation, a clutch onsaid shaft for coupling the same to a suitable source of power, meansfor throwing said clutch into operation, an arm mounted on and rotatablewith said head and arranged to be shifted by the movement of saidpivoted jaw and means arranged to be controlled by said arm forreleasing said clutch at the end of each operation.

22. In a riveting machine, the combination with the machine frame, of astationary cylindrical casing at one end of the machine frame, of arotatable head comprising a hollow cylindrical portion rotatably mountedwithin the stationary cylindrical casing of the machine frame, a fixedjaw mounted within and secured to said hollow cylindrical portion and amovable jaw mounted within said hollow cylindrical portion andcooperating with said fixed jaw, a shaft j ournaled in said frame andconcentric with said cylindrical casing and said rotatable head, anoperating connection between said shaft and said movable jaw, means forcon necting said shaft to and disconnecting the same from a suitablesource of power and means driven from said shaft for automatically andsuccessively shifting said rotatable head at the end of each operation.

In a riveting machine, the combination with the machine frame, of astationary cylindrical casing at one end of the machine frame, of arotatable head comprising a hollow cylindrical portion rotatablymounted. within the stationary cylindrical casing of the machine frame,a fixed jaw mounted within and secured to said hollow cylindricalportion and a movable jaw mounted within said hollow cylindrical portionand pivoted to said fixed jaw, a shaft j oarnaled in said frame andconcentric with said cylindrical casing and said rotatable head, thecylindrical portion of said head and said fixed jaw having bearings forone end of said shaft, an eccentric keyed to the shaft between saidbearings, a strap on said eccentric, links connecting said strap withthe free end of the pivoted jaw, a clutch on said shaft for coupling thesame to a suit able source of power, means for throwing said clutch intooperation, an automatic throw-out for said clutch arranged to act at theend of each operation of the machine, and means driven from said shaftfor shift ing said rotatable head at the end of each operation.

In a riveting machine, the combination with the machine frame, of astationary cylindrical casing at one end of the machine frame, of arotatable head comprising hollow cylindrical portion rotatably mountedwithin the stationary cylindrical casing of the machine frame, a fixedjaw mounted within and secured to said hollow cylindrical portion and amovable jaw mounted within said hollow cylindrical portion andcooperating with said fixed jaw, a shaft journaled in said frame andconcentric with said cylinder casing and said rotatable head, thecylindrical portion of said head having a bearing for one end of saidshaft, an operating connection between said shaft and said movable jaw,a clutch 011 said shaft, a throw-out for said clutch, an arm pivoted onsaid bearing and engaged and operated by said movable jaw, operatingconnections between said arm and said clutch throw-out.

25. In a riveting machine, the combina' tion with the machine framehaving a sta tionary cylindrical casing at one end, of a rotatable headcomprising a hollow cylindrical portion rotatably mounted within thestationary cylindrical casing of the machine frame, a fixed jaw securedto said hollow cylindrical portion and a movable jaw pivoted to saidfixed jaw, a shaft mounted in the machine frame concentric with saidrotatable head, an operating con nection between said shaft and saidmovable jaw, a drive pulley on said shaft, clutch members for couplingsaid pulley and shaft, means for engaging said clutch mei'nbers, anautomatic throw-out for said clutch members, a ring adjustably securedto the cylindrical portion of said head, a cam driven from said shaftand operating connections between said cam and said ring forautomatically shifting said head at the end of each operation of themachine.

MAURICE V. TALEN.

Vitnesses LILLIAN PRENTICE, KATHARINE GERLACH.

